Labels for insertion into a reference divider tab



FIG. 1 is a perspective view of labels that are each insertable into a reference divider tab; and,

FIG. 2 is a front view of the labels of FIG. 1, it being understood that the back view thereof is a mirror image of the front view.

The broken lines in the figures are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for labels for insertion into a reference divider tab, as shown and described. 